Template:Hooker, 1833b
- Hooker, W.J. 1833. Lichenes. In The English Flora of Sir James Edward Smith. Class XXIV. Cryptogamia. Vol. V (or Vol. II of Dr. Hooker's British Flora). Part I (Comprising the Mosses, Hepaticae, Lichens, Characeae and Algae). pp. 129–241. Longman, Rees, Orne, Brown, Green & Longman, London. BHL